Open source · EU AI Act Article 50

Label every AI output your app generates.

Label Kit wraps your image, text and audio generation calls. It attaches C2PA and IPTC provenance, gives you a disclosure label, keeps an audit log, and checks it all in CI. One dependency, no vendor lock-in.

Join the waitlist (👍 the issue) How it works

In development. Not legal advice. No sign-up form: we count 👍 and comments on a public GitHub issue.

01 — Why now

The labelling rules are already in force.

2 Aug 2026Art. 50 applies

Providers must mark synthetic image, video, audio and text in a machine-readable, detectable way.

2 Dec 2026Grace period ends

For marking duties on systems already on the market before August.

3%of global turnover

Or €15M, whichever is higher. Applies to non-EU providers whose output reaches the EU.

Sources: Regulation (EU) 2024/1689, Art. 50 and Art. 99 · EC AI Act Service Desk · Code of Practice on AI-generated content.

02 — How it works

Wrap the call. Ship the proof.

01

Wrap

Drop-in wrapper for OpenAI, Gemini, Stable Diffusion and others.

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02

Mark

Signed C2PA manifest and IPTC digitalSourceType, plus an optional watermark.

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03

Disclose

A ready-made "AI-generated" label snippet for your UI.

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04

Verify

labelkit verify fails CI if any output ships unmarked.

# planned API (sketch)
from labelkit import wrap
client = wrap(OpenAI(), signer="keys/org.pem", log="audit.jsonl")
img = client.images.generate(model="gpt-image-1", prompt="…")
# → PNG carries a signed C2PA manifest + IPTC trainedAlgorithmicMedia
# → audit.jsonl gets {id, model, time, manifest_hash}

$ labelkit verify ./public/generated --fail-on-missing
03 — Honest scope

What it proves, and what it can't.

Does
  • Machine-checkable marking: manifest present, signature valid
  • One API across providers and media types
  • An audit trail you can show a regulator or a customer
  • Built on open standards (C2PA, IPTC)
Does not
  • Give legal advice or certify compliance
  • Decide your editorial-review exemption
  • Guarantee a watermark survives every edit
  • Phone home: everything runs in your own stack
04 — Help us decide

We'll build this only if enough teams need it. If you ship AI-generated content to EU users, 👍 the issue and tell us in one line what you generate and where it shows up.

👍 the waitlist issue